[ruby/prism] Fix parse.y translation for locals test

c8037dfaed

test/prism/locals_test.rb

@@ -140,13 +140,16 @@ module Prism
         case node
         when BlockNode, DefNode, LambdaNode
           names = node.locals
-          params =
+          params = nil
+
           if node.is_a?(DefNode)
-              node.parameters
+            params = node.parameters
           elsif node.parameters.is_a?(NumberedParametersNode)
-              nil
+            # nothing
+          elsif node.parameters.is_a?(ItParametersNode)
+            names << AnonymousLocal
           else
-              node.parameters&.parameters
+            params = node.parameters&.parameters
           end
 
           # prism places parameters in the same order that they appear in the